Home / 131,823.35-181,916.33-71,394.11

Finding the Fourth Proportional to 131,823.35, 181,916.33 and 71,394.11

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Solution

The fourth proportional to 131,823.35, 181,916.33 and 71,394.11 is: 98,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.35 : 181,916.33 = 71,394.11 : x
  2. Step 2: Convert to fraction form
    131,823.35/181,916.33 = 71,394.11/x
  3. Step 3: Cross multiply
    131,823.35x = 181,916.33 × 71,394.11
  4. Step 4: Simplify right side
    131,823.35x = 12,987,754,292.04
  5. Step 5: Solve for x
    x = 12,987,754,292.04/131,823.35
  6. Step 6: Final answer
    x = 98,523.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.